Overview
The LM2904N-HC is a dual operational amplifier (op-amp) integrated circuit produced by Harris Corporation, although it is originally designed and manufactured by Texas Instruments. This IC is part of the LM2904 family, known for its versatility and reliability in various signal amplification and processing applications.
The LM2904N-HC features two independent, high-gain, low-power op-amps in a single package, making it a cost-effective solution for applications requiring multiple op-amps. It operates over a wide supply voltage range and is suitable for both single and dual supply voltage applications.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3 | - | 30 | V |
| Input Bias Current | - | 20 | 250 | nA |
| Input Offset Current | - | 2 | - | nA |
| Unity Gain Bandwidth | - | 1.1 | - | MHz |
| Slew Rate | 0.2 | 0.5 | 0.6 | V/μs |
| Operating Temperature Range | -40 | - | 125 | °C |
| Low-Level Output Voltage (RL = 10 kΩ) | 5 | - | 20 | mV |
| Output Short-Circuit Duration | - | - | Infinite | - |
Key Features
- Internally frequency compensated
- Large DC voltage gain: 100 dB
- Wide bandwidth (unity gain): 1.1 MHz
- Very low supply current per op-amp (500 µA), essentially independent of supply voltage
- Low input bias current: 20 nA (temperature compensated)
- Low input offset current: 2 nA
- Input common-mode voltage range includes negative rail
- Differential input voltage range equal to the power supply voltage
- Large output voltage swing: 0 V to (VCC + -1.5 V)
- No latch-up issues, ideal for voltage-follower applications
- Integrated frequency adjustment and short-circuit safety
Applications
- Transducer amplifiers
- DC gain blocks
- Active filters
- Instrumentation amplifiers
- Audio and video signal processing
- Automotive and industrial control systems
- Single power supply systems
- DVD players and guitar amplifiers
Q & A
- What is the supply voltage range of the LM2904N-HC?
The supply voltage range is from 3V to 30V.
- What is the unity gain bandwidth of the LM2904N-HC?
The unity gain bandwidth is 1.1 MHz.
- What is the slew rate of the LM2904N-HC?
The slew rate is between 0.2 V/μs and 0.6 V/μs.
- What is the operating temperature range of the LM2904N-HC?
The operating temperature range is from -40°C to 125°C.
- Does the LM2904N-HC have latch-up issues?
No, the LM2904N-HC does not have latch-up issues, making it ideal for voltage-follower applications.
- What are some common applications of the LM2904N-HC?
Common applications include transducer amplifiers, DC gain blocks, active filters, instrumentation amplifiers, and audio and video signal processing.
- What is the input bias current of the LM2904N-HC?
The input bias current is typically 20 nA.
- What is the differential input voltage range of the LM2904N-HC?
The differential input voltage range is equal to the power supply voltage.
- What are the package options for the LM2904N-HC?
The package options include SOIC (8) and PDIP (8).
- Is the LM2904N-HC suitable for single power supply systems?
